Huawei P9 Lite - Manual (Page 39)

Getting Started
32
Hiding applications
On the home screen, spread two fingers apart. Touch Add, select the applications
you want to hide, and then touch OK. Applications will not appear on the home screen
after they have been hidden.
To restore a hidden application to the home screen, touch Add on the hidden
applications screen, deselect the desired application, and then touch OK.